systemair SPI-125 C Adjusting Air Flow Iris Damper Instructions
Learn how to install and adjust the air flow with the Systemair SPI-125 C iris damper. This low-noise damper has fixed test points for precise measurements and an adjustable aperture for easy cleaning. Available in sizes ø 80-800mm, it's made from galvanized sheet steel and fitted with an air-tight rubber seal. Contact Puravent for more information at 0845 6880112 or info@adremit.co.uk.